cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A212059 Number of (w,x,y,z) with all terms in {1,...,n} and w=x*y*z-1.

Table of values

n a(n)
0 0
1 0
2 3
3 9
4 12
5 21
6 24
7 34
8 40
9 49
10 52
11 70
12 73
13 82
14 91
15 106
16 109
17 127
18 130
19 148
20 157
21 166
22 169
23 199
24 205
25 214
26 224
27 242
28 245
29 272
30 275
31 296
32 305
33 314
34 323
35 359
36 362
37 371
38 380
39 410
40 413
41 440
42 443
43 461
44 479
45 488
46 491
47 536
48 542
49 560
50 569
51 587
52 590
53 620

List of values

[0, 0, 3, 9, 12, 21, 24, 34, 40, 49, 52, 70, 73, 82, 91, 106, 109, 127, 130, 148, 157, 166, 169, 199, 205, 214, 224, 242, 245, 272, 275, 296, 305, 314, 323, 359, 362, 371, 380, 410, 413, 440, 443, 461, 479, 488, 491, 536, 542, 560, 569, 587, 590, 620]